EP2495776B1 - Elément piézoélectrique multicouche, et dispositif d'injection et système d'injection de carburant utilisant cet élément - Google Patents

Elément piézoélectrique multicouche, et dispositif d'injection et système d'injection de carburant utilisant cet élément Download PDF

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Publication number
EP2495776B1
EP2495776B1 EP10826660.2A EP10826660A EP2495776B1 EP 2495776 B1 EP2495776 B1 EP 2495776B1 EP 10826660 A EP10826660 A EP 10826660A EP 2495776 B1 EP2495776 B1 EP 2495776B1
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EP
European Patent Office
Prior art keywords
layer
piezoelectric element
metal particles
interlayer
piezoelectric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10826660.2A
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German (de)
English (en)
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EP2495776A1 (fr
EP2495776A4 (fr
Inventor
Masahiro Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
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Kyocera Corp
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Publication of EP2495776A1 publication Critical patent/EP2495776A1/fr
Publication of EP2495776A4 publication Critical patent/EP2495776A4/fr
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Publication of EP2495776B1 publication Critical patent/EP2495776B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
    • F02M59/468—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means using piezoelectric operating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure
    • H10N30/508—Piezoelectric or electrostrictive devices having a stacked or multilayer structure adapted for alleviating internal stress, e.g. cracking control layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F02M63/023—Means for varying pressure in common rails
    • F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
    • F02M63/025—Means for varying pressure in common rails by bleeding fuel pressure from the common rail

Claims (7)

  1. Élément piézoélectrique multicouche (1), comprenant :
    un corps (5) empilé colonnaire comprenant
    une partie (2a) active comprenant une pluralité de couches (21) piézoélectriques et une pluralité de couches (3a, 3b) d'électrode interne stratifiées de façon alternée, et
    des parties (2b) inactives comprenant une pluralité de couches (22) piézoélectriques stratifiées, les parties inactives agencées aux deux extrémités dans un sens d'empilement de la partie active ; et
    une paire d'électrodes (4a, 4b) externes agencées sur des faces latérales du corps empilé colonnaire, la paire d'électrodes externes électriquement connectées aux couches d'électrode interne de façon alternée, dans lequel
    dans au moins une partie inter-couches des parties inactives, il y a des particules (12) métalliques ayant une taille de particules plus petite que celle de particules de céramique piézoélectrique formant les couches piézoélectriques des parties inactives, et
    les particules métalliques sont éparpillées dans une plage incluant une région dans laquelle les couches d'électrode interne se chevauchent les unes les autres vues dans le sens d'empilement du corps empilé colonnaire.
  2. Élément piézoélectrique multicouche selon la revendication 1, dans lequel
    un intervalle entre les particules métalliques dans la partie inter-couches est égal ou supérieur à la taille de particules de la céramique piézoélectrique formant les couches piézoélectriques des parties inactives, et
    l'intervalle entre les particules métalliques est égal ou inférieur à un intervalle entre les parties inter-couches.
  3. Élément piézoélectrique multicouche selon la revendication 1, dans lequel un intervalle entre la partie inter-couches et la couche d'électrode interne et un intervalle entre les parties inter-couches sont plus grands qu'une épaisseur de la couche piézoélectrique de la partie active.
  4. Élément piézoélectrique multicouche selon la revendication 1, dans lequel les particules métalliques sont constituées d'un alliage argent-palladium.
  5. Élément piézoélectrique multicouche selon la revendication 1, dans lequel des parties d'extrémité des électrodes externes sont positionnées au niveau de la partie inter-couches dans laquelle les particules métalliques sont éparpillées.
  6. Dispositif (6) d'injection, comprenant :
    un récipient comprenant un trou d'injection ; et
    l'élément piézoélectrique multicouche selon l'une quelconque des revendications 1 à 5, dans lequel
    un fluide stocké dans le récipient est configuré pour être injecté à travers le trou (61) d'injection par entraînement de l'élément piézoélectrique multicouche.
  7. Système (7) d'injection de carburant, comprenant :
    une rampe commune (71) configurée pour stocker un carburant sous haute pression ;
    le dispositif d'injection selon la revendication 6, configuré pour injecter le carburant sous haute pression stocké dans la rampe commune ;
    une pompe (72) de pression configurée pour amener le carburant sous haute pression jusqu'à la rampe commune ; et
    une unité (73) de commande d'injection configurée pour envoyer un signal d'entraînement au dispositif d'injection.
EP10826660.2A 2009-10-28 2010-10-25 Elément piézoélectrique multicouche, et dispositif d'injection et système d'injection de carburant utilisant cet élément Active EP2495776B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009247262 2009-10-28
PCT/JP2010/068825 WO2011052528A1 (fr) 2009-10-28 2010-10-25 Elément piézoélectrique multicouche, et dispositif d'injection et système d'injection de carburant utilisant cet élément

Publications (3)

Publication Number Publication Date
EP2495776A1 EP2495776A1 (fr) 2012-09-05
EP2495776A4 EP2495776A4 (fr) 2014-01-22
EP2495776B1 true EP2495776B1 (fr) 2015-03-18

Family

ID=43921951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10826660.2A Active EP2495776B1 (fr) 2009-10-28 2010-10-25 Elément piézoélectrique multicouche, et dispositif d'injection et système d'injection de carburant utilisant cet élément

Country Status (5)

Country Link
US (1) US8857413B2 (fr)
EP (1) EP2495776B1 (fr)
JP (1) JP5518090B2 (fr)
CN (1) CN102511088B (fr)
WO (1) WO2011052528A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014034693A1 (fr) * 2012-08-27 2014-03-06 Canon Kabushiki Kaisha Matériau piézoélectrique, élément piézoélectrique, et appareil électronique
WO2016132581A1 (fr) * 2015-02-18 2016-08-25 株式会社村田製作所 Élément piézoélectrique et capteur piézoélectrique
JP2017011125A (ja) * 2015-06-23 2017-01-12 京セラ株式会社 積層型圧電素子およびこれを備えた噴射装置ならびに燃料噴射システム
JP6557367B2 (ja) * 2016-02-15 2019-08-07 京セラ株式会社 圧力センサ
JP7131955B2 (ja) * 2017-08-08 2022-09-06 太陽誘電株式会社 積層セラミックコンデンサおよびその製造方法
CN108878639B (zh) * 2018-06-26 2022-02-11 业成科技（成都）有限公司 输入装置及其制造方法
JP7239350B2 (ja) * 2019-03-05 2023-03-14 太陽誘電株式会社 圧電セラミックス及びその製造方法、並びに圧電素子
WO2023157523A1 (fr) * 2022-02-17 2023-08-24 太陽誘電株式会社 Élément piézoélectrique de type stratifié et dispositif électronique

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JPS63288074A (ja) * 1987-05-20 1988-11-25 Nec Corp 積層圧電素子
JPH10139540A (ja) * 1996-10-31 1998-05-26 Toyota Central Res & Dev Lab Inc 圧電材料
JP4854831B2 (ja) * 2000-03-17 2012-01-18 太平洋セメント株式会社 積層型圧電アクチュエータ
JP2001352110A (ja) * 2000-06-05 2001-12-21 Tokin Ceramics Corp 積層型圧電セラミックス
US6734607B2 (en) * 2000-12-28 2004-05-11 Denso Corporation Integrally fired, laminated electromechanical transducing element
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US7633214B2 (en) * 2003-09-24 2009-12-15 Kyocera Corporation Multi-layer piezoelectric element
EP1732146B1 (fr) * 2004-03-09 2014-04-30 Kyocera Corporation Element piezoelectrique multicouche
US7786652B2 (en) * 2004-03-29 2010-08-31 Kyocera Corporation Multi-layer piezoelectric element
JP4803039B2 (ja) 2005-01-06 2011-10-26 株式会社村田製作所 圧電アクチュエータの製造方法及び圧電アクチュエータ
CN101728479B (zh) * 2005-10-28 2012-02-29 京瓷株式会社 层叠型压电元件及使用它的喷射装置
WO2007102369A1 (fr) * 2006-03-07 2007-09-13 Kyocera Corporation processus de fabrication d'élément céramique, élément céramique, élément capteur de gaz, ELEMENT pile à combustible, élément piézoélectrique intégré à une couche, injecteur, et système d'injection de combustible
DE102006019900A1 (de) 2006-04-28 2007-11-08 Siemens Ag Piezoaktor mit Gradient-Verkapselungsschicht und Verfahren zu seiner Herstellung
US8104693B2 (en) 2006-09-28 2012-01-31 Kyocera Corporation Multilayer piezoelectric element, injection device and fuel injection system using the same, and method of manufacturing multilayer piezoelectric element
JP5311733B2 (ja) * 2006-10-30 2013-10-09 京セラ株式会社 積層型圧電素子、これを備えた噴射装置、及びこれを備えた燃料噴射システム
CN101558506B (zh) 2006-12-15 2011-03-16 京瓷株式会社 层叠型压电元件、具有其的喷射装置以及燃料喷射系统
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Also Published As

Publication number Publication date
US8857413B2 (en) 2014-10-14
JP5518090B2 (ja) 2014-06-11
CN102511088B (zh) 2014-05-14
EP2495776A1 (fr) 2012-09-05
US20120228401A1 (en) 2012-09-13
EP2495776A4 (fr) 2014-01-22
CN102511088A (zh) 2012-06-20
WO2011052528A1 (fr) 2011-05-05
JPWO2011052528A1 (ja) 2013-03-21

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